System Compatibility & Single-Source Quality Assurance
By specifying Paneltech accessories alongside your sandwich panels and secondary steel, procurement teams eliminate interface mismatches between screw drilling capacities, drill points, washer chemistries, and sheet profiles. Everything arrives on site palletized, labeled, and accompanied by full mill test certificates.
Heavy-Duty Fixing Self Tapping Screw
Case-hardened carbon steel and stainless steel tapping screws designed with precision thread geometry for securing insulated wall and roof panels to thick hot-rolled structural steel sections and timber framing.
- Material Grade Carbon Steel / SS304 / SS316
- Head Style Hex Washer Flanged Head
- Washer Type Bonded EPDM 16mm / 19mm
- Corrosion Protection Class 3 / Class 4 Ruspert
Fast Installation Self Drilling Screw
High-performance drill-point Tek screws engineered to penetrate sandwich panel facing skins and cold-formed Z & C purlins in a single rapid operation without pre-drilling, avoiding hole distortion and swarf buildup.
- Drill Capacity Up to 12.5mm Heavy Steel
- Lengths Available 25mm to 240mm
- Washer Configuration Integrated Vulcanized EPDM
- Standards Met DIN 7504 / AS 3566
Aesthetic & UV Protection PVC Screw Cap
Molded from virgin UV-stabilized polymers, these snap-on protective caps enclose fastener heads to shield metal surfaces from solar weathering while providing color-coordinated concealment across exterior cladding lines.
- Color Options Standard RAL Matching Range
- Thermal Tolerance -30°C to +110°C Stability
- Fitment Type Hex Washer Head Snap-Lock
- UV Resistance Enhanced Anti-Aging Stabilizers
Vapor Sealing Reinforced Foil Tape
High-tensile aluminum foil tape reinforced with fiberglass scrim and coated with cold-weather synthetic acrylic adhesive. Essential for sealing insulation panel joints, HVAC duct interfaces, and cold store vapor barriers.
- Backing Scrim-Reinforced Aluminum Foil
- Adhesion High-Tack Synthetic Pressure Resin
- Vapor Permeability Class 0 Perm Rating (Zero Vapor)
- Core Roll Sizes 50mm / 75mm / 100mm Widths
Weatherproofing Mastic Butyl Tape
Non-hardening, cross-linked 100% solid elastomeric butyl sealant tape providing an impenetrable air and water barrier along side-laps, end-laps, ridge joints, gutter connections, and translucent skylight perimeters.
- Solids Content 99.5% Non-Shrink Formulated
- Service Range -40°C to +90°C
- Dimensions 6mm x 5mm / 9mm x 3mm Ribbon
- Substrates Galvanized, AluZinc, Polyester Coated
Precision Fastening Rivets
Engineered aluminum-alloy and stainless steel blind rivets for stitching side laps, corner flashings, ridge capping, and guttering where single-sided structural assembly is mandatory.
- Body Material High-Purity Al-Mg Alloy / 304 SS
- Mandrel Material Carbon Steel / Stainless Steel
- Grip Range 1.0mm to 18.0mm
- Head Profiles Dome Head / Countersunk Head
Roof Integrity Profile Ridge
Pre-notched or smooth roll-formed ridge caps precision bent from matching pre-painted galvanized iron (PPGI) or AluZinc steel coils. Designed to interlock tightly with trapezoidal roof panel crowns to prevent wind-driven ingress.
- Base Metal DX51D Galvanized / Aluzinc Steel
- Coating Spec Polyester / PVDF 25/5 Micron
- Standard Girth 300mm to 600mm Custom Profiled
- Thickness 0.40mm to 0.70mm Options
Draft & Acoustic Barrier Rubber Foam Filler
Die-cut closed-cell polyethylene (XLPE) or EPDM foam blocks CNC-shaped to match PTI trapezoidal and sinusoidal sheet profiles exactly. Positioned at eaves and ridges to seal against dust, birds, insects, and wind-driven rain.
- Material Closed-Cell Crosslinked PE / EPDM
- Profile Types Crown (Ridge) & Valley (Eave)
- Density 30 - 45 kg/m³ Resilient Elasticity
- Water Absorption < 1% Volume (Impermeable)
Passive Ventilation Turbine Roof Vent
Zero-energy wind-actuated rotary ventilators manufactured with aerodynamic aluminum or stainless steel vanes and permanently lubricated sealed ball bearings. Continuously exhausts trapped hot air and humidity from factory roofs.
- Throat Diameters 300mm (12") / 600mm (24") / 900mm (36")
- Turbine Material Corrosion-Proof Marine Alloy / SS
- Bearing System Dual Sealed Japanese Ball Bearings
- Base Plate Form-Matched to Panel Profile
Joint Weatherproofing Sealant
Commercial-grade neutral-cure silicone and one-part polyurethane elastomeric sealants formulated for metal-to-metal, panel-to-concrete, and flashing joint sealing under extreme thermal expansion conditions.
- Chemistry Neutral Cure Silicone / PU Polymer
- Movement Capacity ±25% to ±50% Joint Expansion
- Curing Profile Non-Slump Moisture Cure
- Packaging 300ml Cartridges / 600ml Sausages
Technical Matrix: Accessories & Fasteners Specification
| Component | Base Material | Corrosion Rating | Primary Application |
| Self-Drilling Tek Screws | SAE 1022 Case-Hardened Carbon Steel | Class 3 / Class 4 (1,000 hr Salt Spray) | Through-fixation to purlins (1.5mm - 12.5mm) |
| Self-Tapping Heavy Screws | Carbon Steel or SS304/SS316 Stainless | ASTM B117 / AS 3566 Compliant | Heavy structural steel framing & wall brackets |
| UV-Resistant PVC Caps | Engineered Polypropylene / High-Density Nylon | UV Resistant (10+ Year Color Retain) | Protection and aesthetic capping on fastener heads |
| Butyl Mastic Tape | 100% Cross-Linked Polyisobutylene | Inert to oxidation and chemical pollutants | Continuous side & end lap water sealing |
| Profile Foam Fillers | Cross-Linked Closed Cell PE / EPDM | Impervious to moisture and ozone attack | Eave, ridge, and valley draft/pest exclusion |
| Turbine Ventilators | Marine-Grade 5052 Aluminum / SS304 | Resistant to coastal marine salt mist | Natural thermodynamic roof space heat evacuation |
Need a Comprehensive Building Envelope Package?
Our Barka technical team will calculate precise fastener lengths, clip spacing, sealant requirements, and foam profiles directly from your architectural layouts. Source panels, steel framing, and certified accessories together for unified logistics and guaranteed field fit.
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